Sewing machine attachment



Nov. 28, 1944. w. E. KLINE 2.353,.976

SEWING MACHINE ATTACHMENT I Q Filed 001;. 19, 1942 INVENTOR Wammfowq/Pz) llz A f ATTORNE in-eachof the views; -'and'-in which: I a n 1'is a side elevation 'view o fa ri aittach l;

Patented Nov. 28,1944

' e v it i T fem;

" Wallace KlineiTex-ryville;IMomoSSignor to}ThePuritan"Manufacturing-Company,Bosil'hiswinventiomrelatesitorsewingimachines; partinularly of -:thetype imid'rk-ind zused: ;in stitching heavy materials,:fonexample,iinitheetitching I'of soles ofnshoes. vMoreewzrticuiacriy,thes inventicnrelates to :an. attachment ifor machines of this type:and' kindidn the .form :of Ea,-w.orkpiece supporting plate and.feedtrmember disposedibeneei-th themresser foot of-ithe ma-chine ztofacilitate fi ree and easy guiding of theworkpi'ece throug'h themachinegwhileatathe same time; insure firmsiipportnfithe workpieceinproper position hene'Eth; the needle .or =st1tching mechanism 10 f the aFlhe'tnovePfeaturesoTthe invention wiirbe-b'est un'tiers'tood'ffrom' the?followingdescriptions when taken :together with the a. ccompetnyin'giirawing,

in' which certain -ernbod iments 0f the invention are disclosed, and'iinwhich the separate parts are designeited bysuitagble reference ':harract;e rs

ment, partly in section. I T "Fi "2?is "a, front :levition viewfl f Fig.3 "is 'a, plan "View of the? structure i'a's "seen In sewing maehines"of con 01; eration, it has beenIthe commonjpreriticetto'employ fixedworkpiece supporting flpleites ftoeneiith. the 'presser'ff'ootsandneedle mjecha riism of lithe machine, and particularly, ,fin the Istitching the :sOles "of s'hos where flifiicultjhas been experiencedinfeedi ng .or giiigiin'g the workpiece through, the -machine.

It is; 'the purpose of fmy invention to eiiniirialte these objectionablefeatures hy prmiiding' a plate attachment, comprising an 'a' igulafly'iiisnosed workpiece snpportingsurface havingc'anirregiila r' surface,preferably "in the iorm oiff longitudinaii orrecessed 4 portion ofthis,pia;t ec e ennioal ;mu gih ened surface ,Whel or roller,vfreelygrlctatablemcn.

.en axis, .arranged hentrally'gheneathc the ,plateanqiflontheisupportzforgthe piate fJZhis-hevelled; andeorrugaitedontooth-like roller, is arranged to;

engage the workpiece where .the stitching orpemtionmis vperztonmed,athereon @to permit-flee moveperatioii ,01

' provided with ithe' usuall elongated' aiperture' teeththereon' andtodispose withinianfia perturedf mentof theworkpieceiover-theesunporting plate;

1 whileat thesame time zma intaining iinborfjhfl time-with said plate:an :angtnarityto the work;-

workpiece imposition durin 'the st itching ofper'alj tion.

TI-n v fit-he :accomnonizine skewing g1 shave zillus i trelted 'oneadaptation of *theinvntion {at d Figs. 1 and 2,-|O'represents:a'siipportingbalfithe lower endof whichiis recessed, QSfS en at "I"! and a iertured. Qas rseenat L2 formounting lthefibarl inconnection with asewing machine iTheeper -i tunes .1 2, elongated vtoproperiyncentralize,

theattachment with respect to:the.-needle1l.3 of;

thesewing machine. i

, rIniFi'g; Lof'fthe draiwin ggfl represents: a presser foot,'-.the';lower hook or foot ze'nd l 5 :of which throulg h-rwhihthe needlel3"opera tes.

Secured "to thempper end of the ri'atr' l a workpiece supporting plate11; held mf b iti n; Qn thebar by two screws l8. The end'fpoitio-n I9.01 -this plate Whibhiis arranged on the .bar

is JfiaQt, whereas the workpiece supporting .end ,20

is ,bfisetkpr. angularly disposed,-v in ,a "downward direction. Thisendbeing-curved slightlywtoform'- a.v lipas seen-iat -2-I Theupperisurfaeeof the anv gulariworkpieceusupportingendPhasflongitudineilteeth :or projections 22 :to. firm'ly 'engajge'a work-f rp'iece' in-retaining th'e same against "shifting thereon particularly, during' thestitching operation; These teeth or corru'gations, however, do

not interfere with the 1 novement.or feed M the workpiece t'throu'gfhthe machine.

freely receive a; i'workpiece ,supporti'ng wheel-for roller: 25, whereasthe other :end 1 of ithe aperture hits an offset portion 76 tonovide'*cleariincefor screw 2.8,.ha.,ving,a lockmitlfi,fIhegslottedsheed 30. of :thejscrew .gor" stud supports; the -.oonica1bevelled-1911M against displacementifiliomthezbam i and atiiis studforms Ian axisxuponwhichtthen oller" is rfreely nzotatable; in otherwords, sufficient clearance is bro'ride'd in the 'monnting of the s'tuflto provide affree rotation 'ofthe *ro'll'erf upon h 3 5A, 3 r i I y ebevelled surface .of .the iro'ller is .provided with.c'ircnmferentially:..spa.ced.-;nibs :31, which-in.

turn areiorinediintoteeth or gprojectionsbyicir cumflerentiahg-rooves312, and theseiteeth ror pm". jections will engage the workpiece and hyreason f'lfhe central portion QTQthepIate-has a large apertureuoricutoiit 23', substantially of thejorm' illustrated in .-Fig.3 of the clraivizing.v v .The dove tailed end "of this :aperturevrb'eingadapted-to 21, secured .130 the p'per end .of water in. and retained"against 'displacement therefmmwhyarsetl element.

of the free rotary movement of the roller the workpiece'is freely fedthrough the machine in the stitching operation.

In Fig. 1 of the drawing, I have diagrammaticallyillustrated, insection, a part of the sole 33 of a shoe, part of an upper 34 in theoperation of stitching the upper to the sole as indicated at 35. Byreas'onfof the angular'support of the' workpiece by the end portion 20of the plate H, as well as angularity provided by the roller 25. Theworkpiece is supported in a position which facilitates the stitchingoperation as at 35,- allowing the presser foot end IE to snugly fitalong the irregular contour of the upper of a shoe during the stitchingoperation. The teeth 22' offthe supporting plate, as well as the teethof the roller retains the workpiece at all times in proper position, andthe portion 36 of the roller which pro- J'ects above the surface of theplate engages: the workpiece to'slightly lift the same from the plate inthe feeding operation thereof. v

It may be said that the workpiece support comprises a unit presentingonebevelled or angular surface, and thissurface. is dividedinto,a-stationary or non-movable portion and a movable claim as newanddesire to secure by Letters Patent is: 7

1. The combination with a sewing machine of a workpiece supportingattachment, said attach.

ment comprising a plate having a downwardly inclined surface arrangedbeneath the needle of the machine, said surface being formed byelongated tooth like projections extending in the direction of the feedof a workpiece beneath the needle of the machine, means exposed throughsaidsurface engaging a workpiece; to aid in the operation of stitchingthe same, and said last named means comprising a freely rotatable 2. Thecombination with a sewing machine of a workpiece supporting attachment,said attach ment comprising a plate having a downwardly inclined surfacearranged beneath the needle of the machine, said surface being formed byelongated tooth like projections extending in the direction'of the feedof a workpiece beneath the needle of the machine, means exposed throughsaid surface engaging a workpiece to aid in the operation of stitchingthe same, said last named means comprising a freely rotatable element,and said element having a bevelled surface conforming to the inclinationof the inclined surface of said supporting plate.

3. A workpiece supporting attachment, for

stitching machines, said attachment comprising a post, an axis arrangedat right angles toj'one end-portion of the post, a roller freelyrotatable on said axis, said roller having'a' bevelled surface adaptedto be engaged by theworkpiece and arranged substantiallyin' alinementwith'the stitching mechanism of the machine at one sideof the needle ofthemachine, stationarymeans secured to said post adjacent and partiallyenveloping said roller forming asupport for the workpiece, and saidmeans having an upper surface conforming in part to the bevelled surfaceof-said roller.

4. A workpiece supporting attachment for stitching machines, saidattachment comprising a post, an axis arranged at right angles to oneend portion of the post, a roller freely rotatable on said axis, saidroller having a bevelled surface adapted to' be engaged by the workpieceand arranged substantially in alinement with the stitching mechanism ofthe machine at one side of the needle of the machine, stationary meanson said post adjacent and partially enveloping said roller forming asupport for the workpiece, the bevelled surface of said roller havingteeth or projections, and said last named means having a surfacesubstantially paralleling the bevelled surfaceof theroller.

i -5. A workpiece supporting attachment for stitchingmachines, saidattachment comprising a post, an axis arranged at right angles to oneend portion of the post, a roller freely rotatable on said axis, saidroller having a bevelled surface'adapted to be engaged by the workpieceand arrangedsubstantially in alinement with the stitching mechanism ofthe machine/at one side of the .needle of the machine, means on saidpost adjacent said roller forming a support for the workpiece, thebevelled surface *of said roller having teeth or projections, said lastnamed means having a surface substantially paralleling the bevelledsurface of the roller, and said last named surface being formed. byelongated teeth arranged at right angles to' theaxis of said roller.

6. A workpiece support attachment for sewing machines comprising aplate, means adjustably supporting the plate beneath the needle of themachine, said platehaving-a horizontally flat portion, and-a downwardlyinclined curved portion arranged beneath the needle of the machine, thelowerend of said inclined curved portion terminating in an inwardlyturned lip, and the outer surface of said inclined portion being formedby longitudinally extending and transversely spaced ribs.

'7. A workpiece supporting attachment for stitching machines, saidattachment comprising a mounting portion and a work engaging plateinclined downwardly with .respect thereto and arranged beneath theneedle-of the machine,

means for adjustably supporting theattachment in the machine to positionsaid plate with respect to the needleand presser foot of the machine,

the central portion of said plate being apertured, and a roller mountedfor free rotation in the aperture of said plate, with the surface .ofsaid roller exposed through the plate to engage the workpiece, inproviding free movement of the workpiece over the plate in the.operation of stitching the same.

8. A workpiece supporting attachment for stitching machines, saidattachment comprising amounting. portion and a work engaging plateinclined downwardly with respect thereto and arranged beneath. theneedle of the machine,

means foradjustably supporting the attachment in the machine topositionsaid plate with respect to the needle and presser foot ofthemachine, the central portion of said plate being apertured, a rollermounted for free rotation in the aperture 'of' said plate, with thesurface of said roller exposed through the plate to engage the work-fpiece, in providing free movement of the workpiece over the-plate intheoperation o'f stitchingthe same, and said roller being conical inforn'f presenting a bevelled surface in alinement with the angularportion of said plate. 9. A workpiece supporting attachment forstitching machines; said attachment comprising a mounting portion and awork engaging plate inclined downwardly with respect thereto andarranged beneath the needle of the machine,

means for adjustably supporting the attachment V of the workpiece overthe plate in the operation of stitching the same, said roller beingconical in form presenting a bevelled surface in aline-' ment with theangular portion of said plate, part of said roller projecting above themounting portion or said attachment, and the upper surface of saidplatehaving longitudinally extending teeth arranged at right angles to theaxis of rotation of said roller.

10. The combination with the needle and presser'foot mechanism of astitching machine, of a workpiece support, said support comprising astationary plate having an attaching portion and a'downwardly inclinedapertured work engaging'portion arranged beneath the needle of themachine, and'a freely rotatable substantially conical member arrangedin, the aperture of said downwardly inclined portion in presenting inalinement with the surface of said portion a bevelled surface over whicha workpiece is free to pass.

WALLACE E. KLINE.

